The google logo, illustrated characters GOGLE like brain cells, if you do not know at a glance like a tree branch,
O while the second letter, he head-shaped image.

Santiago Ramón y Cajal (1 May 1852 – 17 October 1934) was a Spanish pathologist, histologist, neuroscientist, and Nobel laureate. His pioneering investigations of the microscopic structure of the brain were original: he is considered by many to be the father of modern neuroscience. He was skilled at drawing, and hundreds of his illustrations of brain cells are still used for educational purposes today.